US3346762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark gaps
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1964-12-30
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Granted: 1967-10-10
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Martin John Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
H; H01; H01T; H01T2/00; H01T2/02; H01J; H01J17/00; H01J21/00; H01T1/00; H01J2893/00; H01J2893/0059
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SPARK-GAP INCLUDING A TRIGGER ASSEMBLY ARRANGED IN SPACED RELATIONSHIP WITH A MAIN ELECTRODE IN THE GAP, SAID ASSEMBLY COMPRISING A TRIGGER ELECTRODE HAVING A SHARP EDGE EXPOSED TO THE GAP AND A FIELD-FORMING ELECTRODE SEPARATED FROM SAID EXPOSED SHARP EDGE BY A THIN LAYER OF DIELECTRIC MATERIAL TO PRODUCE A CORONA-PRODUCING ELECTRIC FIELD AT SAID SHARP EDGE BY APPLICATION OF A TRIGGERING VOLTAGE BETWEEN SAID TRIGGER ELECTRODE AND SAID FIELD-FORMING ELECTRODE, SAID DIELECTRIC MATERIAL EXTENDING BEYOND SAID SHARP EDGE TO PREVENT THE FORMATION OF A FURTHER GAP EXTENDING FROM A CONDUCTING SURFACE OF SAID
Claim 2
Dependent Claim
95 words
A SPARK-GAP INCLUDING A TRIGGER ASSEMBLY ARRANGED IN SPACED RELATIONSHIP WITH A MAIN ELECTRODE IN THE GAP, SAID ASSEMBLY COMPRISING A TRIGGER ELECTRODE HAVING A SHARP EDGE EXPOSED TO THE GAP AND A FIELD-FORMING ELECTRODE SEPARATED FROM SAID EXPOSED SHARP EDGE BY A THIN LAYER OF DIELECTRIC MATERIAL TO PRODUCE A CORONA-PRODUCING ELECTRIC FIELD AT SAID SHARP EDGE BY APPLICATION OF A TRIGGERING VOLTAGE BETWEEN SAID TRIGGER ELECTRODE AND SAID FIELD-FORMING ELECTRODE, SAID DIELECTRIC MATERIAL EXTENDING BEYOND SAID SHARP EDGE TO PREVENT THE FORMATION OF A FURTHER GAP EXTENDING FROM A CONDUCTING SURFACE OF SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |